FROM alpine as asset COPY ./asset.sh / RUN apk --update add --no-cache curl wget && \ sh /asset.sh FROM alpine COPY ["./overture/", "./init.sh", "/etc/overture/"] COPY --from=asset /tmp/asset/ /usr/bin/ RUN mv /etc/overture/init.sh / && \ mkdir -p /etc/cleardns && \ sed -i '$i\0\t4\t*\t*\t*\t/etc/overture/update.sh' /var/spool/cron/crontabs/root CMD ["sh","/init.sh"]